Nervous System
Receives incoming information (senses). Sends messages to the body about how to react.

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Skeletal System
Provides Shape and structure to the body. Allows for movement. Protects vital organs. Produces blood cells.
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Integumentary System
Protects the body from invaders by providing a tough protective layer. Warms the body. Cools the body.
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Muscular System
Allows for movement of the body. Keeps head in position. Provides heat.
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Endocrine System
Controls body functions using chemicals messengers called hormones.
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Circulatory System

Transports oxygen, waste, nutrients, hormones, heat, etc... around the body

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Respiratory System

Brings oxygen into the body. Gets rid of carbon dioxide.
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Urinary System
Cleanses the blood. Rids the body of wastes. Maintains salt and water balance.
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Immune System
Fights disease.
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Digestive System
Breaks down food into smaller molecules. Absorbs these nutrients into the body.
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Reproductive System
Produces sex cells (sperm and eggs). Produces sex hormones (testosterone, estrogen). Nurtures the unborn baby (fetus).

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